All implausible synonyms
im·plau·si·ble
I i adj implausible
- unbelievable — too dubious or improbable to be believed: an unbelievable excuse.
- incredible — so extraordinary as to seem impossible: incredible speed.
- unreasonable — not reasonable or rational; acting at variance with or contrary to reason; not guided by reason or sound judgment; irrational: an unreasonable person.
- dubious — doubtful; marked by or occasioning doubt: a dubious reply.
- farfetched — improbable; not naturally pertinent; being only remotely connected; forced; strained: He brought in a far-fetched example in an effort to prove his point.
- improbable — not probable; unlikely to be true or to happen: Rain is improbable tonight.
- flimsy — without material strength or solidity: a flimsy fabric; a flimsy structure.
- impossible — not possible; unable to be, exist, happen, etc.
- inconceivable — not conceivable; unimaginable; unthinkable.
- unconvincing — persuading or assuring by argument or evidence: They gave a convincing demonstration of the car's safety features.
- doubtful — of uncertain outcome or result.
- far out — being at a great distance; remote in time or place: a far country; the far future.
- fishy — like a fish in shape, smell, taste, or the like.
- obscure — (of meaning) not clear or plain; ambiguous, vague, or uncertain: an obscure sentence in the contract.
- problematic — of the nature of a problem; doubtful; uncertain; questionable.
- puzzling — confusing or baffling: a puzzling answer.
- suspect — to believe to be guilty, false, counterfeit, undesirable, defective, bad, etc., with little or no proof: to suspect a person of murder.
- thin — having relatively little extent from one surface or side to the opposite; not thick: thin ice.
- too much — an excess of
- unsubstantial — not substantial; having no foundation in fact; fanciful; insubstantial: an unsubstantial argument; unsubstantial hopes.
- weak — not strong; liable to yield, break, or collapse under pressure or strain; fragile; frail: a weak fortress; a weak spot in armor.
- for the birds — any warm-blooded vertebrate of the class Aves, having a body covered with feathers, forelimbs modified into wings, scaly legs, a beak, and no teeth, and bearing young in a hard-shelled egg.
adjective implausible
- unlikely — not likely to be or occur; improbable; marked by doubt.
- fantastic — conceived or appearing as if conceived by an unrestrained imagination; odd and remarkable; bizarre; grotesque: fantastic rock formations; fantastic designs.
- far-fetched — improbable; not naturally pertinent; being only remotely connected; forced; strained: He brought in a far-fetched example in an effort to prove his point.
- questionable — of doubtful propriety, honesty, morality, respectability, etc.: questionable activities; in questionable taste.